Note 3 - Acquisitions (Details Textual) - USD ($) $ in Millions			3 Months Ended
Mar. 25, 2022	Feb. 25, 2022	Mar. 31, 2022
Asset Acquisition, Consideration Transferred, Total			$ 162.9
Flat Top Operating Area [Member]
Asset Acquisition, Consideration Transferred, Total			$ 10,200.0
Stock Issued During Period, Shares, Acquisitions (in shares)	6,960,000	6,960,000
Payments to Acquire Oil and Gas Property and Equipment, Total	$ 156.6
Flat Top Operating Area [Member] \| Contingent Option Agreement [Member]
Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	773,333

The number of shares issued or issuable under asset acquisition.

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9215-128498

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 55
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
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-URI https://asc.fasb.org/extlink&oid=127000608&loc=d3e9135-128495

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 30
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-URI https://asc.fasb.org/extlink&oid=126928898&loc=d3e9212-128498

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- Definition

The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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